# Convertizo vs Robotail

The clearest difference is price: Robotail at Free against Convertizo's $3.99. Robotail also leads on iOS requirement (12.0 vs 17.0). Convertizo's advantage is update cadence (every 8 days vs monthly). On ads, in-app purchases and device support there is nothing between them.

Robotail is free to download; Convertizo costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Convertizo ships an update every 8 days, Robotail monthly. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Convertizo | Robotail |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.1 (76 ratings)](https://appshunter.io/ios/app/convertizo-unit-converter/id1049725915/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 64.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Monthly |
| Monetization | Free | — |
| Size | 3 MB | 143 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Perfect Dimension](https://appshunter.io/developer/448146469) | [HOMEROBOT LIMITED](https://appshunter.io/developer/1838364185) |

## What reviewers say

### Convertizo

[App page](https://appshunter.io/ios/app/convertizo-unit-converter/id1049725915)

This app provides accurate and reliable unit and currency conversions for iPhone and iPad. It automatically imports the latest exchange rates and offers a wide range of units, including both metric and imperial measurements. Enhanced with multitasking support and customizable themes, it streamlines everyday calculations.

**Highlights:** Accurate unit and currency conversions, Automatic latest exchange rates, Supports metric and imperial units, Slide Over and Split Screen multitasking, Recent conversions stored, Customizable themes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Robotail

[App page](https://appshunter.io/ios/app/robotail/id6752230544)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Convertizo free?

Convertizo costs $3.99, with no in-app purchases.

### Is Robotail free?

Robotail is free to download, with no in-app purchases.

### Do Convertizo or Robotail have ads?

Neither Convertizo nor Robotail shows ads.

### Which is updated more often, Convertizo or Robotail?

Convertizo ships an update every 8 days, and Robotail monthly. Most recently, Convertizo was updated on October 10, 2026 and Robotail on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*